Profiling machine



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` Patented Aug. 6, 1935 V UNITED sTATEs PATENT OFFICE PROFILING MACHINE Harry R. Geer, Westmont, Pa., assigner to Bethlehem Steel Company, a corporation of Penn- Sylvania Application July 22, 1933, Serial No. 681,701

52 Claims. (Cl. 82-19) My invention relates to profiling machines and which form a. part of this specication and in more especially to al device for forming zig-zag which like characters of reference indicate like grooves in roll passes or in the cylindrical face parts, of aplain nishing roll. v Fig. 1 is a front elevation of my invention 5 One 'of the objects of my invention relates to illustrating it in the position it will assume in 5 the manner of adjusting the stroke of the top cutting zig-zag groovesin roll passes with enough tool carriage-block which carries the cutting of a standard machine shop engine lathe to show tool so that it may be reciprocated longitudinally its application thereto. in a. plane at the side of the roll thereby enabling Fig. 2 is a front elevation of my invention drawn l the cutting-tool to travel different distances to 011 a larger SC'le With the hand Wheel for the feed 10 correspond with the width oi the roll pass or in screw removed. l l the case of a plain faced roll any desired height Fig. 3 Iis a front elevation showing the driving of a zig-zag groove that may be desired, mechanism as applied to the lathe chuck and Another object of my invention relates to the the COilDlng Connections between the Profiling l5 mechanism for holding the to'ol with its cutting machine and the roll to be grooved. i5

face at a xed angle in its mounting during the Fie. 4 is 2- top plan view of my invention. reciprocation of the top tool carriage hlo'ckfand Fig- 5 SaIleDd elevationfor automatically rotating the cutting-tool in one Fis. 6 is a vertical transverse `section taken on direction at the end of. the forward stroke of the the line 6-5 0f Fig. 1. zo said top tool carriage block and for automatically Fig. lis a vertical longitudinal section taken 2n rotating the cutting-tool in the reverse direction 0n the line 'l- 0f Fig- 9. at the end of the backward stroke of the same, Fig. 8 is a vertical transverse section taken in such a manner that the cutting face of the tool 0n i311e line .M 0f Fig- '7- will always be held transversely to the line of the Fig. 9 is a vertical transverse section through $5 groove out and in radial alignment withthe center the machine taken 0n the lille 9-9 0f Fg- 7- 25 ot the roll. Fig. 10 is a detail vertical section showing the Another object of my invention rems to the manner of mounting the mast and radius-blocks,

mechanism for adjusting the rotary movement of taken 011 the ine iii-i0 0f FE- 4- the cutting-tool at the end of each stroke of the Fig. 11 iS a i011 Plan View 0f the masi? and so top m01 carriage-block. i radius-blocks. :zo

A further object of my invention is to provide Fig. 12 is a detail view of one of the shims used means for giving the cutting end of the tool an in adjusting the radius-W001i. s arc shaped path during the reciprocating strokes Fig. i3 is a detail vertical section through the of the top tool carriage-block. top of the slide taken on the line I3-l3 of Fig. 4. `A fiu'ther 'object of my inventionis to provide, Fig. 14 is a detail transverse section through 35 means for adjusting the radii of the arc describal l the slide taken on the line llli4 of Fig. 5. by the cutting tool. Figs. 15 and 16 are details illustrating the mann A further object is to form the bearings and ner of attaching and mounting a ring-gear over slide-ways for the several parts so they can be the pinion mounted on the driving-spindle. 40 quickly adjusted t0 take up any lost motion which Fig. 17 is a detail of the split collar and clamp- 40 may occur. ing screw which is secured to the cylindrical cas- A further object of my invention relates to the ing of the bearing for the change gear Shaft. manner 0f muntmg the i001 @mage barge 011 Fig. 18 is a detail vertical section'througn the the rest'baf S0 that it an be quckly adllsted tool holder head taken on the une is-via of in any desired positionin front of the roll to be Fig 19 45 operated upon.

Stm another object relatestothe mechanism by. heg. 19 is a front elevation of the tool holder means of which the'number of zi -z waves for each revolution of the roll may bvi'fied and Fig' 2 is 9' detail Sectwn through 9' p0rno governed, of the tool post bracket taken on the line 20-20 50 with the foregoing and other objects in View of Fig. 5, illustrating the manner of applying and my invention comprises the novel construction,` holding' the Coupling by means 0f a key when combination and arrangement of parts herein- ,it is desired to adjust the tool holder and couafter more specifically described and illustrated Illing-Spindle.

@ in the accompanying eleven sheets of drawings Fig. 21 is a detail illustrating the manner of 55 connecting the crank-arm to ythe 'coupling- Y blocks.

Fig, 26 is a. perspective `view of a portion of a roll showing a at and an arc shaped roll pass formed therein.

Fig. 27 is a diagrammatic view illustrating the position the cutting-tool will assume in forming a zig-zag groove and Fig. 28 is a section through a portion of an arc-shaped roll pass illustrating in dotted lines the depth of the zig-zag groove when the cutting-tool is adjusted to travel in a path concentric with the sides of the roll pass, and another groove when the tool is adjusted to travel in an arc of greater radius than the sides of the roll pass'.

Referring now to the drawings in detail, the numeral I indicates a machine shop engine lathe, 2 the lathe bed, 3 the lathe head, l lugs on the face of the lathe head forming a chuck for holding the work to be turned, 5 the head stand upon which the motor 5 is mounted and adapted to be connected by means of gearing (not shown) with the spindle of the lathe head in the usual well known manner. A thimble l extends outvfardly from the center of the lathe head having flanged feet 8 which are held between the lugs l of the chuck. The thimble 'l is adapted to receive one end of a coupling shaft 9, to which it is keyed, while the opposite end of said shaft is connected and keyed to a coupling i9, and one end of one of the necks of the roll Ii, to be operated upon, said roll having passes formed therein as at I2'. Spaced housings I3 are secured by means of bolts to the lathe bed 2, each having a journal bearing mounted thereon, as at Iii, for receiving the intermediate portions of the necks of the roll which are adapted to rotate thereon during the turning and grooving operations.

A post I5, extends upwardly from the back end of each of the housings, each of said posts having a plurality of perforations formed therein as at I6, adapted to receive one or more keys I1 for holding the' rear ends of the bearing arms I8 for engaging the tops of the roll necks above the journal bearings I9. The forward ends of the bearing arms I9 are bifurcated as at I9 to receive the threaded ends of eye bolts 29, said eye bolts being pivoted at their lower ends as at 2| to the housing I3. The threaded ends of the eye bolts each have a nut 22 and washer 23 for engaging the top surface of the outer ends of the bearing arms for holding them in position. The above mentioned details of the lathe and the manner of mounting the roll for turning are of well known standard construction and a `iurther description of the same is not considered necessary.

Mounted on the housings I3 and connecting them together is a rest-bar 24, having a T- shaped slotl 25 formed therein on its under side extending longitudinally thereof for receiving the heads of bolts 26 for adjustably attaching the rest bar to the flanges 21 that extend laterally from the sides of the housings. Extending upface .of the rest-bar into a groove 28 in the bottom of the tool carriage base 29 is a dovetailed tongue 30 adapted to form a slideway for the tool carriage base. Sockets are formed in the top surface of the slideway as at 3| to receive the shanks 32 of removable lugs 33, the heads of said lugs have threaded eyes formed therein as at 34 for receiving adjusting bolts 35 the ends of which are reduced and adapted to extend into sockets 36 in either end of the tool carriage base '29. In order to allow for wear and to insure a. tight flt at all times between the tool carriage base 29 and the tongue 30, a liner 31 is inserted at one side thereof between'the same which can be adjusted by means of set bolts 38 and- 39. A transverse dovetailed tongue l0 projects upwardly from the central top surface of the tool carriage base for engaging the groove M in the bottom of an intermediate tool carriage block 92 and forms a slideway therefor and is provided with a tapered liner 43, which is adjustable by means of a bolt M. The intermediate tool carriage block is provided on its upper'face with a projecting longitudinal dovetailed slide-way l5 which extends into a groove 96 formed in the lower surface of the top tool carriage block 91, having a liner d8 between the same which .is adjustable by means of set bolts 99 and 59. Extending transversely from the upper surface of the tool carriage block l1 near one side thereof is a. dovetailed slide-way 5I which extends into a groove 52 formed in the lower surface of the tool post bracket 53 and is provided with a liner 54 between the same which is adjustable by means of set bolts 55 and 56.

The tool post bracket 53 is provided with a tubular upwardly extending portion 51 for receiving the tool holder 58 and a tubular couplingspindle 59, the two being connected together by means of a coupling 5U. The head of the tool holder projects beyond the inner end of the tubular extending portion 51 and is provided with a socket 6i for receiving the cutting-tool 62 secured in position by means of a T-shaped clamping block 53 which is inserted in a similar shapedV groove Gli extending transversely in the head of the tool holder and the parts are held in position by means of a clamping screw 65. The tool holder 58 is rotatably mounted in a Timken roller bearing 56 and is provided with a screw threaded intermediate portion as at 61 for receiving one end of the coupling 69 and also for receiving a lock washer tiwhich is keyed thereto and a lock nut 69, and a reduced end portion 'l0 extending into the tubular inner end of the coupling-spindle 59 to which it is keyed as at 1 I.

In adjusting the tool holder 58 and couplingspindle 59 a key 12 is used which is mounted on a attened surface 13 formed on top of the tubular extension 51. pin projections 14 on one side thereof adapted to extend into perforations 15 formed in the tubular portion 51, when not in use. A stud 16 projects centrally from the opposite side of the key having a flattened upper end adapted totool-holder 58 or coupling-spindle 59, it is taken,

off and turned over and the end of the stud 16 This key 12 hasspaced engagement with one of the serrations 11 to h oldf the coupling 60 or lock nut 89 from turning while allowing the tool-holder 58 or coupling-spindle 59 to be adjusted by hand as desired as willbe clearly understood by referring to Fig. 20 of the drawings. A Timken roller bearing 18 supports the intermediate portion of the tubular couplingspindle 59, while its outer end is formed with a. head extending beyond the tubular'portion 51. having a dovetailed slot 18 formed transversely therein for engaging the inclined sides of a square headed bolt 80 which is inserted therein with the shank of the bolt extendingoutwardly therefrom beyond the outer end or the couplingspindle 59. The front face of the couplingspindle 59 is grooved as at 8| to receive the rectangular nanged end 82 of a sleeve 83 mounted Onthe intermediate portion of the bolt 80 upon which is rotatably mounted an eye-bolt 84. The inner surface of the eye of this bolt is provided with a bushing as at 85, the parts being austable on the head of the spindle-coupling and retained in position by means of a lock-washer and nut 86 threaded on the outer end of the bolt 80. The shank of the eye-bolt 84 has one end of an arm 81 pivoted thereto and retained `in position thereon by means of a. nut 8S threaded on the end of the bolt, the opposite end of the arm being perforated to receive a pin 89 having extending ends journaled in Timken roller bearings 90 which are mounted in cylindrical openings formed in the bifurcated end'of a yoke 9| and retained in position by an adjuster 92. The yoke 9| is mounted in an opening 93 in the upper end of a slide 94, the body of the yoke is perforated as at 95 for receiving a shaft 96. the ends 'of which extend beyond the top and bottom surfaces of the yoke and journaled in Timken roller bearings 91 mounted in the slideY 94 and retained in position by means of an adjuster 96, both of these adjusters 92 and96 have` serrations 99 formed therein on their upper surfaces for engaging keys |00, whereby they are held in their adjusted positions. As it is sometimes desirable to hold the shaft 96 against turning when assembling and adjusting the parts, the upper end of this shaft extends through ya central perforation in the adjuster 98 and projects beyond the upper end of the slide and is squared or at'tened for receiving a wrench or tool for holding the same.

AThe lower end of the slide 94 has rabbeted side edges and is mounted in a slide-way |02 formed in one end of the intermediate tool carriage block 42.

|04 for reciprocating the slide. This cam |04 has a tubular extendingl portion |05 which is mounted on, and keyed to a cam-shaft |06 that extends through openings |01 and |08 in the slide 94 and intermediate tool carriage block 42 respectively, said cam-shaft being journaled in Timken roller bearings |09, one of which is seated in a socket at each end of the opening |08 formed in the intermediate tool carriage block 42. A cam ||0 is mounted on the tubular extenf engaging the slide-way |25.

A pairof spaced rollers |03 are g attached to the sidi of the slide 94 adapted to engage the top and bottom surfaces of a cam termediate tool carriage block 42 opposite the cam 0 having 'Iimken roller bearings mounted therein as at ||6 for receiving a stub-shaft ||1 formed integral with the end of a swinging-arm ||8 and adapted to form a pivotal point therefor. Attached to the swinging-arm ||8 at an intermediate point and extending downwardly therefrom is a stud-pin ||8 having a roller |20 mounted thereon for engaging the cam 0 for actuating the same.

A bracket |2| having its opposite ends ilanged as at |22 and attached by means of bolts |23 to the same end of the intermediate tool carriage block i2 as that of the bracket H5 extends laterally over the top face of the swinging arm ||8 and is slotted as at |24 to form a. slide-way for receiving 'thevblocks of anadjustable fulcrurn point connection between the swinging arm ||8 and the bracket |2| for reciprocating the top carriage block 41 upon which the tool post bracket is mounted, the construction of which I will now describe. Slideways |25 and |26 are formed longitudinally in the swinging arm ||8 which are adapted when the swinging arm is in its ceny tral position to be disposed in vertical alignment with the slot |24 formed in 'the bracket |2| as indicated in Fig. 4 of the drawings. The slideway 26 is dovetailed to engage the inclined sides of the rectangular head of a clamping-bolt |21,

while the shank of Vthe bolt extends upwardly therefrom through the slot |24 formed in the bracket i2! for receiving a sleeve |28 having a rectangular shaped flanged edge for adjustably Mounted on the sleeve |28 on top of the swinging-arm ||8 are two bearing blocks |29 each having an arc shaped side portion |30 for engaging either side of the sleeve |28, the sides of the bearing blocks are each provided centrally with a longitudinal rib |3| adapted to extend-into a groove |32 on the inner faces of Wedge-blocks |33, the bearingblocks |29 are also provided with screw-threaded studs E34 for receiving flanged sleeve-nuts |35 for engaging the bifurcated ends |36 of the wedge-blocks |33, for adjusting the wedge-blocks when desired. One side of each of 'the wedgeblocks opposite the grooved face is made straight so that when the several parts are assembled the straight sides ot the wedge-blocks .will be parallel with each other and slidably engage the sides ofthe slot |26 formed in the bracket |2| during the reciprocation of the top tool carriage blocks 41. The upper end of the clamping-bolt |21 is screw-threaded for receiving a washer |31 and a clamping-nut'l38 by meansof which the sleeve |28, bearing-books |29, and wedge-blocks |33 are securely clamped to each other on the swinging-arm H8 'and forms a fulcrum point between the same and the bracket |2 By slightly unscrewing the clamping nut v|38 the fulcrum point may be adjusted on the swinging-arm 8 to give a greater or less stroke to the reciproeating top tool carriage block 41 which carries the tool post bracket 53, with the cutting tool holder 58. The swinging-arm H8 is graduated as at |39 to indicate the position of the fulcrum point thereon and a pointer |43 is attached .to the front 'end of the bracket |2| to more easily determine the position of the swinging arm in relation'thereto. When the fulcrum point is moved towards the pivotal point ||1, on the swingingarm ||8 the roller |20 engaging the cam ||0 will give a shorter stroke to the top tool carriage block 41, as the fulcrum point is moved farther away the stroke will be longer.

To enable the cutting tool to travel in an arc-shaped path an ear |4| extends forwardly from the base of the tool post bracket 53 having a screw-threaded hole formed therein as at |42 for receiving -a bolt |43, this bolt has a reduced plain lower end |44 extending into a roller bearing |45 which is mounted in a socket |46 formed in a radius-block |41, this radius-blockA is adjustably mounted in a mast-block |48 and has oppositely disposed parallel sides, grooved as at |49 for receiving the inwardly extending flanged sides |50 of the mast-block. Extending forwardly from the radius-block |41 is a cylindrical screwthreaded extension which passes through a perforation |52 in the front flanged face |53 of the mast-block, and a nut |54 is threaded on its. outer end by means of which the radiusblock is held in its adjusted position, the front end of the radius-block being adapted to be held in spaced relation with the front flanged face |53 -of the mast-block |48 by means of a shim |55. Formed integral with the mast-block |40 is a shaft |56 journaled in Timken roller bearings |51 which are mounted in a bracket |50 provided with flanged edges attached to the front face of the intermediate tool carriage block 42 by means of bolts |59. The radius-block is adjusted in the following manner, if it is desired to cut a zig-zag groove which is concentric with the sides of the roll pass as indicated at |50 in Fig. 28 for a one inch bar the top tool post bracket 53 would be adjusted by means of the radius-block, so that the bolt |03 or pivotal point would be one half of an inch out of vertical alignment with the center of the mast-block shaft |55, or one half of the diameter of the bar or pass, this proportion would be proportionately the same with all sizes of roll passes, the adjustment being one half the diameter of the bar where the groove is formed concentric with the width or sides of the pass, if however it is desired to increase the radius of the cut to form a zig-zag groove having a greater depth at the vapices of the groove as indicated at |5| in Fig. 28

an adjustment of a greater distance from the mast-block shaft is made, if it isdesired to decrease the radius of the cut to form a groove deeper in the center of the pass than at the apices the adjustment would be less than one half the size of the bar, after the radius-block has been adjusted in the desired position the shim |55 of the proper width is inserted between the front end of the radius-block and the front flanged face |53 of the mast-block and the nut |54 on the threaded extension tightened.

When it is desired to cut zig-zag grooves in a straight face of a cylindrical roll or a fiat pass as indicated by the numeral |62 in Fig.' 26 the bolt |43 is removed and the tool post bracket 53 locked tothe top tool carriageblock 41, in this manner the point of the cutting tool will travel parallel withthe side face of the roll.

During the profiling operation the roll is continuously driven and the cutting tool is advanced by the operator after each revolution of the roll. A mark usually in chalk as indicated at |63' in Fig. 2 being placed on the roll opposite the roll pass so that the operator will know when each revolution is completed and the time to advance the tool, which is done by means of a feed-screw |54- which extends transversely through a perforation |65 in the intermediate tool carriage block 42 and threaded into a square shaped nut |66 seated in recess |61 formed therein and held in position by means of a keeper |684 'attached to the rear face of the intermediate tool carriage block 42 by means of bolts' as at |40. The feed-'screw has a plain portion which is journaled in a bearing-bracket attached by means of a bolt |1| to the front side face of the tool carriage base 29. In order to hold the feedscrew |64 stationary in relation to the tool car-v riage an 4abutment |12 and a collar |13 on the plain portion of the feed-screw engage opposite sides of the bearing-bracket |10. A vernier gage sleeve |14 having graduations formed thereon register with a setting mark on the bearingbracket |10 is mounted on the feed-screw and extends over the abutment |12 and is held in position by means of a spring inserted between washers |16 and |11 and a hand-wheel' |10 is keyed to the outer end of the'feed-screw and retained in position by means of a nut |19 threaded on the reduced outer end of the feed-screw.

The cam-shaft |06 is formed with a head |00 at one end to which is keyed by means of a spline |8| a fiy-wheel |82, which by its rotation assists in securing uniform motion to the moving parts. and for resisting sudden accelerations of speed by its inertia and sudden retardation by is momentum. The head |80 is coupled by'means of universal joints |89 and |85 and coupling-rod |85 to a driving-spindle |06 journaled in a bearing-bracket |81 having a pinion |80 mounted thereon meshing with an index-gear |89 mounted on the change-gear shaft |90 which is journaled in roller bearings in a cylindrical casing |9|, the opposite end of said change-gear shaft |90 having a pinion |92 keyed thereto meshing with adriving-gear |93 which is attached to the lugs 9 on the lathe head 3, by means of bolts |94. This cylindrical casing |9| has a segmental arm |95 extending therefrom provided with a ribbed face |96 for adjustably engaging the segmental groove |91 formed in the side face of the driving-spindle bearing bracket |81, the segmental arm |95 being secured to the driving-spindle bearing bracket |51 by means of clamps |98 and bolts |99. In order to more fully support the cylindrical casing |9| in its adjusted position a split collar 200 is clamped around the cylindrical casing and held in its adjusted position by means of a bolt and an adjusting nut 202. When it is desired to change the size of the index-gear |09 the nut for retaining the same is taken off and the index-gear removed, the nuts on the bolts |99 are unscrewed slightly to release the clamping action of the clamps |98 upon the segmental arm |95, the adjusting nut 202 on bolt 20| unscrewed, a new index-gear mounted on the shaft and secured in place by the nut,

the segmental arm |95 can then be rotated and adjusted so that the new index-gear will mesi; with the pinion |08, the nuts on bolts |99 can then be tightened, the bolt 20| adjusted and the nut202 screwed down tight on one of the flanges of the split collar 200.

When it is desired to increase the size of the pinion on the driving-spindle |86 to decrease the number of reciprocations of the top tool car-v riage block 41 for each rotation of the rollI as is the case in forming zig-zag grooves in the nishing roll passes of larger sizes this can be easily accomplished by mounting a ring-gear 203 over the pinion |88 on the driving-spindle |86 and securing it thereto by means of a key 204 as will be clearly understood by referring to Figs. l5 and 16 of the drawings.

The operation of my invention is as follows:- assuming that the parts are in the positions shown in the drawings and it is desired tocut a zig-zag groove concentric with the side wall of the roll-pass, the radius-block |41 isadjusted to allow a shim |55 to beinserted between its forward end and the flange |53 of the mast-block |48, the width of the shim being one half of the diameter of thc body of the bar to be rolled or the width of the pass, this will adjust the bolt |43 an equa-.1 distance out of vertical alignment with the mast block-shaft |56. The parts are then securely clamped together by means of the nut |54 on the screw-threaded extension |5|. The clamping-bolt |21 with the parts mounted thereon and engaging the slot |24 of the bracket |2| and connected to the top tool carriage block 41 thereby forming aA fulcrum point therefor is then adjusted on the swinging-arm ||8 to give a cross-travel for the cutting tool of approximately seven-tenths o the width of the pass by means of the roller |20 engaging the cam H0. The roll il being mounted as shown and continuously driven in a counter-clockwise direction when Viewed from a position opposite the right hand end of the machine as illustrated in Fig. l, with the cam-shaft |06 connected and driven also in a counter-clockwise direction through the train of gearing by means of the driving gear |93 from the lathe head 3, the tool carriage carrying the cutting tool 62 preferably having 15 side cutting edges as indicated in Fig. 28 of the drawingsis then advanced toward the roll il by the operator rotating the hand-wheel |18 until the point of the cutting tool engages the side surface of the roll pass It will be understood however that other shaped cutting tools may be used, but the one described has been found desirable for the purpose. The operator then sets the Vernier gage sleeve |16 until the reading is zero as indicated in Fig. 4 of the drawings. It will be noted by referring to the drawings that the top tool carriage block 41 with the parts mounted thereon is in its central position and is being advanced on the slide-way 45 from left to right to cut the -inclined groove 'in the same direction by the movement of the roll, the cutting tool being held with its cutting face at all times transversely to the sides oi the groove being cut as indicated in Fig. 27. It will be understood however that the cutting point of the tool is always held cen` trally in the center of the tool holder and substantially in radial alignment with the center of the roll. At the same time the bolt |43 threaded into the ear |4| of the tool post bracket 53 and engaging the roller bearing |45 in the rad'us-block |45 supported by the mast-block |48 will form a pivotal point for the tool post bracket 53 and will reciprocate it transversely on the slide-way 5| for each stroke of the top tool carriagc block 41 and allow the point of the cutting tool 62 to travel in the arc of a circle concentric with the wall of the roll pass I2.

During the stroke of the top carriage block 41 from left to right the slide 94 which is connectezito the cutting tool holder 58 by means of the yoke 9|, arm 81 and coupling-spindle 59 will remain stationary in its lower position until substantially the end of the ,stroke or un-` tl the top roller |03 on the slide which has been passing over the smaller concentric portion of ihe cam |04 engages an inclined surface between the two concentric surfaces of the cam, as the top roller |03 on the slide rides up over this inclined or sloping surface onto the concentric surface o'f larger diameter the cutting tool Q2 will be rotated substantially 90 provided the zigzag groove to be cut is about 45 as shown, but by adjusting the position of the bolt 80 on the grooved face 8| of the head of the couplingspindle the amount of rotation of they cutting tool can be van'ed for zig-zag grooves of different inclinations. As the cam-shaft |06 continues to rotate,-the cam 0 will slide the top tool carriage block 41 from right to left, while the slideY 94 will remain in its raisedv position during the return stroke by means of the top roller |03 engaging the larger concentric portion of the cam |04 until it reaches another oppositely aligned inclined portion between the two concentric portions of the cam over which it passes rotating the cutting tool in the reverse direct on 90 or into the position it assumed before its rotation in the first instance, the roller |03 will 'again engage the smaller concentric portion of the cam |04 and the operation' will be repeated; as above described the number of zig-zag waves for each revolution of the roll being established by the indexing gears. As an example, in the drawings the driving-gear |93 has one hundred and fifty teeth and meshes with a pinion |92 having fifteen teeth which is mounted on one end of the change-gear shaft |90, the opposite end of said change-gear shaft having an indexgear |09 with forty-two teeth mounted thereon,

this index-gear meshes with a pinion |89 on theV driving-spindle |86 for rotating the cam-shaft 06 and is provided with twenty teeth. With this train of gearing the cam shaft |06 with the cams |00 and H0 mounted thereon would be rotated twenty-one times for each rotation of the roll ll, thereby reciprocating the slide 94 and the top tool carriage bloclr 41 a similar number of times. If an index-gear having fifty-four teeth is substituted for the one above mentioned with the same gearing the cam-shaft would be ro-` tated twenty-seven times in a similar period, or if an index-gear with 56 teeth were used the cam-shaft would be rotated thirty-three times. If the same gearing is used as first described and a ring-gear 203 having thirty teeth is used over the pinion |88 as indicated in Figs. l5 and 16, the cam-shaft would be rotated fourteen times for each rotation of the roll, numerous other combinations may be made to give any number of waves to the zig-zag groove from one, to a greater number of waves than for thos/e above mentioned, if desired.

After starting the grooving operation the roll is rotated continuously until the groove is completed, when the marl: |63 appears at the end of each revolution of the roll the operator advances the cutting tool against the surface of the rotating roll by means of the hand-wheel |18 thereby at the same time turning the Vernier gage sleeve |13 slightly until the desired depth of the groove is reached as indicated by the vernier reading.

When it is desired to out zig-zag grooves deeper in the center of the roll pass than at the sides a shim |55 of less than half the Width radii Vof the roll pass is used, otherwise the operation is the same as for forming grooves concentric with the side wall of the pass. If, however, it is desired to cut a groove in a roll pass having a greater radius than the side wall as indicated by thenumeral |6| in Fig. 28 a shim |55 of greater width than one half the radius or width of the roll pass is used, the operation being similar to that of cutting concentric grooves with the exception that @S it is necessary for the cutting tool to cut out the sides of the pass, flrst the vernier gage is not set at zero until the toolhas cut out enough at the sides to reach the central surface of the pass, when this occurs the vernier gage is set at zero and the grooving proceeds as for a cony centric groove.

, bracket locked on the top carriage block 41. lThe clamping bolt |21 and parts mounted thereon and connected to the swinging arm ||B can then be adjusted to give any desired longitudinal reciprocation to the top tool carriageblock 41, the

` cutting point of the tool will then travel in a parallel line at the side of the roll.

Although the cams`l|04 and ||0 are adapted to form a waved or zig-zag groove, other forms of ca ms could be used on the same machine for cutting other shaped grooves of irregular or different outline without departing from the spirit of my invention.

The bearings and slide-ways in my machine can be quickly adjusted to take up any wear which may occur, this feature is of particular advantage as in a machine of this kind no lost motion in the se'veral movements of the device can be tolerated.

This machine can also be easily attached to any standard machine shop engine lathe for turning rolls and the cutting tool carriage quickly adjusted when in position to operate on any pass or cylindrical surface desired by adjusting the tool carriage base 29 on the rest-bar 24 by means of the removable lugs 33 which can be inserted in the spaced sockets 3l and further adjusted by means of the bolts 35.

Although I have shown and described my invention in considerable detail, I do not wish to be limited to the exact construction specified, but may use such substitutions, modifications or equivalents thereof as are embraced within the sclzope of my invention as pointed out in the c aims.

Having thus described my inventionwhat I claim as new and desire to secure by Letters Patentis.

1. In a profiling machine, means for supporting and rotating the work, a tool for forming a circumferential groove in the work, means for feeding said tool into cutting engagement with the work, a rotating cam adapted for holding the cutting-tool against rotation during the major portion of the grooving operation and means reciprocated during the rotation of the work for supporting the cutting tool.

2. In a profiling machine, means for supportingand rotating the work, a tool for forming a zigzag circumferential groove in the work, means for feeding said tool into cutting engagement with the work, means longitudinally reciprocated during the rotation ofthe work for supporting the cutting-tool, means for holding the cutting-tool against rotation duringvthe reciprocation of its supporting means, and means for rotating the ting-tool against rotation during the major portion of the grooving operation and for automatically rotating the cutting-tool at the ends of the strokes of said reciprocating means.

4. In a profiling machine for forming a groove in a cylindrical surface, comprising means for supporting and rotating the work, longitudinally reciprocating means carrying a cutting-tool at the side'of the work, means for holding the cutting-tool against rotation during the major portion of the grooving operation, and means for automatically rotating the cutting-tool a partial revolution at the end of each stroke of thereciprocating means.

5. In a profiling machine for forming a groove in the surface of a roll or the like, means for supporting and continuously rotating the roll during the grooving operation, longitudinally reciprocating means carrying a cutting-tool at the y side of the roll in parallel relation thereto, means for feeding the tool into cutting engagement with the roll, means for holding the cutting-tool against rotation during the major portion of the grooving operation, means for automatically rotating the cutting-tool in one direction at the end of the forward stroke of the vreciprocating means, and means for automatically rotating the cutting tool in the'reverse direction at the end of the backward stroke of the reciprocating means.

6. In a ,profiling machine for forming a zigzag groove in the surface of cylindrical work,A

means for supporting and continuously rotating the cylindrical work during the grooving operation, longitudinally reciprocating means carrying a cutting-tool disposed in radial alignment with the central axis of the cylindrical work and arranged to travel in parallel relation thereto, means for transversely advancing the tool into cutting engagement with the cylindrical work, means for holding the cutting-tool against rotation during the major portion of the grooving operation, means for automatically rotating the cutting-tool in one direction at the end of the forward stroke of the reciprocating means, and means for automatically rotating the cuttingtool in the reverse direction at the end of the backward stroke of the reciprocating means.

'1. A profiling machine for forming grooves in rolls or the like, comprising means for supporting and rotating the roll, a tool carriage pro-- vided with an adjustable base and intermediate blocks, a top tool carriage block mounted thereon, a cutting-tool carried by the top tool carriage block, means intermittently operated fcr automatically reciprocating the top tool carriage block, means for holding the cutting-tool against rotation during the reciprocation of the top tool carriage block and means for automatically rotating the cutting-tool in both directions.

.carriage block, means for holding the cuttingtool against rotation during the reciprocation of the top tool carriage block, means for automatically rotating the cutting-tool in one direction at the end of the forward stroke of the reciproeating top tool carriage block, means for automatically rotating the cutting-tool in the reverse direction at the end of the' backward stroke of the reciprocating top tool carriage block, and

means for adjusting the rotating movement of the cutting-tool.

9. A profiling machine for forming grooves in rolls or the like, comprising a tool carriage provided with an adjustable lower portion, a top tool 1o carriage block mounted thereon, a cutting-tool carried by the top tool carriage block, means for supporting and continuously rotating the roll, automatic means for longitudinallyreciprocating the top tool carriage block in a plane at the l5 side of the roll, means for holding the cuttingtool against rotation during the longitudinal reciprocation of the top tool carriage block, means for adjusting the stroke of the top tool carriage block, means for automatically rotating the cutting-tool in'one direction at the end of the forward stroke of the reciprocating top tool carriage block, means for automatically rotating the cutting-tool in the reverse directionat the end of the backward stroke of the reciprocating top tool carriage block, and means for adjusting the rotating movement of the cutting-tool in timed relation with the reciprocating top' tool carriage block.

ld. A profiling machine for forming zig-zag lrooves in rolls or the like, comprising a tool carriage provided with longitudinally and transversely adjustable lower portions, a top tool carriage block mounted thereon, means for supporting and continuously rotating the roll, a cut- So ting-tool carried by the top tool carriage block disposed in. radial alignment with the central axis of the roll, automatic means for longitudi-` nelly reciprocating the top tool carriage block in a horizontal plane at the side or the roll, 49 means for adjusting the stroke of the top tool carriage block, automatic means for rotating the cutting-tool in one direction at the end of each forward stroke ofthe reciprocating top tool car-4 relation with the reciprocating top tool carriage 5o. block, and means for feeding the cutting-tool transversely into cutting engagement with the rotating roll.

1l. In a profiling machine i'or forming circum- Ierential grooves in the surface of a cylindrical 55 roll or the like, means for supporting and rotating the roll, longitudinally reciprocating means carrying a cutting-tool at the side of the roll, means for automatically rotating the cutting-tool in timed relation with the longitudinally reciprocating means, and means reciprocating transversely of the roll adapted to move the cutting-tool in an arcuate path during each stroke of the longitudinally reciprocating means.

l2. A profiling machine for forming grooves in rolls or the like, comprising a tool carriage provided with longitudinally and transversely adjustable lower portions, a top tool carriage block mounted thereon, a tool post bracket mounted on the top tool carriage block, a cuttingtool ron tatably mounted in the tool post bracket, Ameans for supporting and rotating the roll, automatic means for longitudinally reciprocating the top tool carriage block in a plane at the side of the roll, and automatic means for reciprocating the vtool post bracket transversely of the roll during the longitudinal reciprocation oi' the top riage block.

13. A proling machine for forming grooves in rolls or the like, comprising a tool carriage provided with an adjustable lower portion, a top tool carriage block slidably mounted thereon, a tool post bracket mounted on the top tool carriage block, a cutting-tool rotatably mounted in the tool post bracket, means for continuously rotating the roll during the grooving operation, automatic means for longitudinally reciprocating the top tool carriage block in a plane at the side'of the road, automatic means for rotating the cuttingtool in opposite directions, and automatic means for reciprocating thetool post bracket transverscly of the roll during the longitudinal reciprocation of the top tool carriage block.

141, A profiling machine for forming zig-zag grooves Iin roll passes or the like, comprising a tool carriage provided with an adjustable lower portion, a top tool carriage block slidably mounted thereon, a tool postbracket mounted on the top tool carriage block, a cutting-tool 'rotatably mounted in the tool post bracket, means for supporting and rotating the roll, automatic means for longitudinally reciprocating the top tool carriage block in a plane at the side of the roll, means for adjusting thelongitudinal stroke oi the top tool carriage block, means for rotating the cutting-tool at the end of each stroke of the top tool carriage block, means for reciprocating the tool post bracket on the top tool carriage block trans- -versely of the roll during the longitudinal reciprocation of the top tool carriage block, and means for adjusting the `reciprocating stroke of the tool post bracket.

15. A proiiling machine for forming zig-zag grooves in roll passes or the like, comprising a tool carriage provided with a relatively stationary lower portion, a top tool carriage block reciprocally mounted thereon, a tool post bracket mounted on the top tool carriage block, a cutting-tool carried by the tool post bracket, means ior supporting and rotating the roll, automatic means for longitudinally reciprocating the top tool carriage block in a horizontal plane at the side oi the roll, means for adjusting the longitudinal stroke of the tool carriage block, automatic means for rotating the cutting-tool in one direction at the end of each forward stroke of the recprocating top toolv carriage block, automatic means for rotating the cutting-tool in the reverse direction at the end of each backward stroke of `the reciprocating top tool carriage block, means for adjusting the rotating'movement oi the cutting-tool in timed relation with the reciprocating top tool carriage block, means for reciprocating the tool post bracket transversely of the roll during the longitudinal reciprocation of the top tool carriage block, and means for adjusting the reciprocating stroke of the tool post bracket.

16. A proling machine for forming zig-zag grooves in roll passes or the like. comprising a tool carriage, a cam-shaft journaled in the tool carriage, means for rotating the cam-shaft, a top tool carriage block, a tool post bracket mounted on .the top tool carriage block, a cutting-tool carried by the tool post bracket, means for supporting and rotating the roll, a cam on the camshaft for longitudinally reciprocating the top tool carriage block on a horizontal plane at the tool carside of the roll, means pivoted to the tool post i bracket for transversely reciprocating the same on the top tool carriage block atthe side of the 'roll, and means for advancing the cutting-tool into engagement with the rotating roll.

17. A profiling machine for forming zig-zag grooves in cylindrical rolls or the like, comprising a tool carriage, a cam-shaft journaled in the tool carriage, a top tool carriage block, a tool post bracket mounted on the top tool carriage block, a cutting-tool carried by the tool post bracket, means for supporting and rotating the roll during the grooving operation, means for rotating the cam-shaft, means for changing the number of rotations of the cam-shaft in relation to the roll, a cam on the cam-shaft for longitudinally reciprocating the top tool carriage block on a horizontal plane at the side of the roll, means for adjusting the reciprocating stroke of the top tool carriage block, pivotal means for reciprocating the tool post bracket on the top tool carriage block transversely of the roll during the reciprocation of' the said top tool carriage block, means for adjusting the reciprocating stroke of the tool post bracket -means for reversing the face of the cutting-tool at the end of each stroke of the reciprocating top carriage block, and means for advancing the cutting-tool into engagement with the rotating roll.

18. A4 profiling machine for forming zig-zag grooves in cylindrical rolls or the like, comprising a tool carriage having a longitudinally adjustable base block, a transversely adjustable intermediate block with alongitudinaliyreciprocating top tool carriage block mounted thereon, a transverse slide-way formed on the upper surface of the toolcarriage block, a tool post bracket mounted on the slide-way, a cutting-tool carried by the tool post bracket, a cam-shaft journaled in the intermediate tool carriage block, means for rotating the cam-shaft, a cam on the cam-shaft for longitudinally reciprocating the top carriage block, a cam on the cam-shaft vfor rotating the cutting-tool, and means independent of the camshaft for transversely reciprocating the tool post bracket during the reciprocation of-the top tool carriage block.

19. A proling machine for forming zig-zag grooves in rolls or the like, comprising a tool lcarriage having a longitudinally adjustable base block, a transverse slideway formed thereon, a transversely adjustable intermediate tool .carriage block mounted on the slide-way of the base block provided with a longitudinal slide-way on its' upper tace, a top tool carriage V block mounted on the longitudinal slide-way of the intermediate block, a transverse'slide-way formed on the top tool carriage block, a tool post bracket mounted on the transverse slide-wayof the top tool carriage block, a cutting-tool carried by the tool post bracket, means for adjusting the slide-ways of the tool carriage, means for longitudinallyreciprocating the top tool carriage block.. means pivoted to the tool post bracket for imparting transversely reciprocating movement thereto during the longitudinal reciprocation of the top tool carriage block, means for rotating the cutting-tool in one direction at the end of each iorward stroke of the top tool carriage block, and

means for rotating the cutting-tool in the reverse direction at the end or each backward stroke of the top tool carriage block.

20. A profiling machine Ior forming grooves in rolls or the like, comprising means for supporting and rotating the roll, a tool carriage, a. cuttingtool carried by the tool carriage, means for advancing the tool into cutting engagement with the:

rotating roll, means intermittently "operated for automatically rotating the cutting tool, and means for simultaneously imparting a longitudinal `and transverse movement to the cutting-tool.

21. A proling machine for forming grooves in rolls or the like, comprising means for supporting and rotating the roll, a tool carriage, a cuttingtool carried by the tool carriage, means for advancing the tool into cutting engagement with the lrotating rolls, means intermittently operatedfor a cutting-tool carried by the tool carriage, means for advancing the tool into cutting engagement with the rotating roll, means for simultaneously imparting a longitudinal and transverse movement to the tool during the cutting operation, means for adjusting the longitudinal and transverse movement of the cutting-tool, means for rotating the cutting-tool, and means for adjusting the rotation of the cutting-tool.

23. 'A proling machine for forming zig-zag grooves in rolls or the like, comprising means for supporting and rotating the roll, a tool carriage, a cutting-tool carried by the tool carriage, means for advancing thetool into cutting engagement with the rotating roll, means for simultaneously imparting a reciprocating longitudinal and transverse movement to the cutting-tool during the cutting operation, means for adjusting the reciprocating stroke of the longitudinal and transverse movement of the cutting-tool, means for rotating the cutting tool in both directions, and 1means for adjusting the rotation of the cuttingool.

l 24. A proling machine for forming `zig-zag grooves in rolls or the like, the combination with a lathe, a lathe bed, housings mounted on the lathe bed, bearings formed on the housings for supporting the roll, a rest-bar mounted on the housings, a tool carriage adjustable longitudinally on the rest-bar, a cutting-tool carried by the tool carriage, a cam-shaft journaled in the tool carriage, means for rotating the roll and cam-shaft in'timed relation to each other' from the lathe, a cam on the cam-shaft for imparting a lateral movement to the cutting-tool, and independent means for imparting a longitudinal movement to the cutting-tool.

25. A profiling machine. for forming zig-zag grooves in rolls or the like, the combination with a lathe, a lathe bed, housings mounted on the lathe-bed, bearings formed on the housings for supporting the roll, a rest-bar mounted on the 'with for rotating the roll and cam-shaft together in timed relation, means for changing the number of rotations of the cam-shaft in relation to the roll, a cam on the cam-shaft for imparting a lateral movement to the cutting-tool, independent means for imparting a longitudinal movement to the cutting-tool, and means for feeding the cutting-tool.

26. In a machine of the character described, a bed, housings mounted-on the bed, journal bearings formed on the housings adapted to support a roll, a driven shaft carrying a chuck adapted to rotate the roll, a tool carriage supported on the housings, a cutting-tool carried by the tool carriage adapted to form a zig-zag groove in the roll, means for holding the cutting face of the tool in transverse alignment with the sides of the groove, and means for imparting a longitudi nal and transverse movement to the cuttingtool in relation to the roll.

27. In a machine of the character described, a bed, housings mounted on the bed, journal bearings formed on the housings adapted to support a roll, a driven shaft carrying a chuck adapted to rotate the roll, a rest-bar supported on the housings, a tool carriage mounted on the rest-bar, a top tool carriage block, a tool post bracket mounted on the top tool carriage block, a tool holder having a cutting-tool secured thereto mounted in the tool post bracket, means for longitudinally reciprocating the top tool carr-iage block, and a pivoted radius-block for imparting a transversely reciprocatingmovement tothe tool post bracket.

28. In a machine of the characterv described, a

bed, housings mounted onthe bed, journal bearhaving a relatively stationary base and intermediate blocks, a toptool carriage block, a tool post bracket mounted on the top tool carriage block, a tool holder having a cutting-tool secured thereto mounted in the tool post bracket, a cam-shaft journaled in the intermediate tool carriage block,

means for rotating the cam-shaft, a cam mounted on the cam-shaft for reciprocating the top tool carriage block for carrying the cutting-tool longii tudinally of the roll, pivoted means for reciprocating the tool post bracket carrying the cuttingtool transversely of the roll, and means to feed the cutting-tool inward toward the central axis of the roll.

29. In a proling .machine for forming zig-zag grooves in rolls or the like, comprising means for supporting and rotating the roll, a tool carriage provided with a top tool carriage block, a tool post bracket mounted on the top tool carriage block, a cutting tool carried by the tool post bracket, means for longitudinally' reciprocating the top tool carriage block, and means for transversely reciprocating the tool post bracket adapted to give the cutting-tool an arcuate path.

30. In a machine ofl the character described, a. tool carrige providedwith relatively stationary base and intermediate blocks, a top tool carriagev block mounted thereon, a tool post bracket mounted on the top tool carriage block, a cutting-tool carried by the tool post bracket, means for longitudinally reciprocating the top tool carriage block, means for transversely reciprocating the tool post bracket simultaneously with the reciprocation of the top tool carriage block, and means for rotating the cutting-tool at the end of the reciprocating strokes of the top tool carriage block and tool post bracket. y l

31. In a machine of the character described, a

tool carriage provided with relatively stationary tool carriage portions, a reciprocating top tool carriage block mounted thereon, a tool post bracket mounted on the' top tool carriage block, a cut'- ting-tool carried by the tool post bracket, a camshaft journaled .in the tool (carriage, means for rotating the cam-shaft, a cammounted on the cam-shaft for longitudinally reciprocating the top tool carriage block, pivoted means connected to the tool post bracket for transversely reciprocating the tool post bracket simultaneously with the reciprocation of the top tool carriage block, and means for rotating the cutting-tool in both d1- rections.

32. In a machine of the character described, a tool carriage provided with relatively stationary tool carriage portions, a reciprocating top tool carriage block mounted thereon, a tool post bracket mounted on the top tool carriage block, a tool holder provided with a cutting-tool journaled in the tool post bracket, a coupling-spindle connected to the tool holder and journaled in the tool post bracket, a cam-shaft journaled in the tool carriage, means for rotating the cam-shaft, a cam on the cam-shaft for longitudinally reciprocating the top tool carriage block, means pivotally connected to the tool post bracket for transversely reciprocating the tool post bracket simultaneously with the reciprocation of the top tool carriage block, a slide-way formed in the tool carriage, a slide mounted therein, a connection between the slide and the coupling-spindle, and a cam on the cam-shaft for reciprocating the slide to rotate the cutting-tool in one direction at the end of each forward stroke of the top tool carriage bracket simultaneously with the top tool carriage block, a tool holder provided with a cutting-tool journaled in the tool post bracket, a coupling-spindie connected to the tool holder and journaled in the tool post bracket, a cam-shaft journaled in the tool carriage, means for rotating the cam-shaft, a reciprocating slide mounted in the tool carriage, a connection be'iween the slide and the couplingspindle, a cam on the cam-shaft for reciprocating the slide to rotate the cutting-tool at the end of each of the strokes in one direction and for rotating the cutting-tool in the-reverse direction at the end of each of the strokes of the slide in the opposite direction, and means for adjusting the rotation of the cutting-tool.

34. In a machine of the character described, a tool carriage provided with relatively stationary tool carriage portions, a top tool carriage block mounted thereon, means for longitudinally reciprocating the top tool carriage block, a tool post bracket mounted on the top tool carriage block, rotatably m'unted pivotal means for transversely reciprocating the `tool post bracket simultaneously with the top tool carriage block, a tool holder provided with a cutting-tool journaled in the tool post bracket, a couplingspindle connected to the tool holder and jour- 'flanged end engaging the grooved face of the coupling-spindle, an eye-bolt rotatably mounted on the sleeve,a cam-shaft'journaled in the tool carriage, means for rotating the cam-shaft, a Y 

